Abstract
Spatial perception is formed throughout our entire lives. Its quality depends on our individual differences and the characteristics of the environment.
A sketch map is one way of visualising an individual's spatial perception. It can be evaluated like a real map, in terms of its positional accuracy, content frequency and choice of cartographic methods.
Moreover, the factors influencing the sketch map and/or its individual parameters can be identified. These factors should be of interest to geographers, cartographers and/or (geography) educators.
The aim of this paper is to identify and describe the factors that clearly affect sketch map quality, by conducting a systematic review of 90 empirical studies published since 1960. Results show that most empirical studies focus on individual differences more than on environmental characteristics or information sources, even though the importance of these overlooked factors, especially source map characteristics and geographical education, has been proven in most analysed studies.
Therefore, further research is needed in the field of sketch map quality parameters, especially in the use of cartographic methods. This paper could serve as a framework for such research.